Exploiting the Phase of a Bio-inspired Receiver

Modern radar should be able to detect targets in heavy clutter and to identify specific targets. Both tasks require the ability to resolve close scatterers in order to be able to differentiate the target, either from natural or man-made objects. The output of a bat auditory system model for two close target echoes was studied. It was shown how the phase of the signal can be used to improve the resolution performance. The improvement is expected for ultra wideband bat-like waveforms and confirmed with experiments with ultrasound.